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Date: Thu, 10 Sep 2020 15:57:52 +0800
From: kernel test robot <lkp@...el.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
Anshuman Khandual <anshuman.khandual@....com>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Michael Ellerman <mpe@...erman.id.au>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com
Subject: [mm/debug_vm_pgtable/locks] c50eb1ed65:
BUG:sleeping_function_called_from_invalid_context_at_mm/page_alloc.c
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: c50eb1ed654b59efad96884cc26895a0acd7a15a ("mm/debug_vm_pgtable/locks: move non page table modifying test together")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: boot
on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+----------------------------------------------------------------------+------------+------------+
| | 5c65ca35e5 | c50eb1ed65 |
+----------------------------------------------------------------------+------------+------------+
| boot_successes | 18 | 0 |
| boot_failures | 0 | 10 |
| BUG:sleeping_function_called_from_invalid_context_at_mm/page_alloc.c | 0 | 10 |
+----------------------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>
[ 9.409233] BUG: sleeping function called from invalid context at mm/page_alloc.c:4822
[ 9.410557] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper
[ 9.411932] no locks held by swapper/1.
[ 9.412595] CPU: 0 PID: 1 Comm: swapper Not tainted 5.9.0-rc3-00323-gc50eb1ed654b5 #2
[ 9.413824] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 9.415207] Call Trace:
[ 9.415651] ? ___might_sleep.cold+0xa7/0xcc
[ 9.416367] ? __alloc_pages_nodemask+0x14c/0x5b0
[ 9.417055] ? swap_migration_tests+0x50/0x293
[ 9.417704] ? debug_vm_pgtable+0x4bc/0x708
[ 9.418287] ? swap_migration_tests+0x293/0x293
[ 9.418911] ? do_one_initcall+0x82/0x3cb
[ 9.419465] ? parse_args+0x1bd/0x280
[ 9.419983] ? rcu_read_lock_sched_held+0x36/0x60
[ 9.420673] ? trace_initcall_level+0x1f/0xf3
[ 9.421279] ? trace_initcall_level+0xbd/0xf3
[ 9.421881] ? do_basic_setup+0x9d/0xdd
[ 9.422410] ? do_basic_setup+0xc3/0xdd
[ 9.422938] ? kernel_init_freeable+0x72/0xa3
[ 9.423539] ? rest_init+0x134/0x134
[ 9.424055] ? kernel_init+0x5/0x12c
[ 9.424574] ? ret_from_fork+0x19/0x30
[ 9.425310] Key type ._fscrypt registered
[ 9.426019] Key type .fscrypt registered
[ 9.426707] Key type fscrypt-provisioning registered
[ 9.427637] fs-verity: Initialized fs-verity
[ 9.840093] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
[ 9.853197] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[ 9.877389] Sending DHCP requests ., OK
[ 9.879581] IP-Config: Got DHCP answer from 10.0.2.2, my address is 10.0.2.15
[ 9.880824] IP-Config: Complete:
[ 9.881354] device=eth0, hwaddr=52:54:00:12:34:56, ipaddr=10.0.2.15, mask=255.255.255.0, gw=10.0.2.2
[ 9.882905] host=vm-snb-i386-109, domain=, nis-domain=(none)
[ 9.883902] bootserver=10.0.2.2, rootserver=10.0.2.2, rootpath=
[ 9.883905] nameserver0=10.0.2.3
[ 9.894061] Freeing unused kernel image (initmem) memory: 656K
[ 9.895575] Write protecting kernel text and read-only data: 23520k
[ 9.898343] Run /init as init process
[ 9.899004] with arguments:
[ 9.899514] /init
[ 9.899927] with environment:
[ 9.900487] HOME=/
[ 9.900987] TERM=linux
[ 9.901465] user=lkp
[ 9.901908] job=/lkp/jobs/scheduled/vm-snb-i386-109/boot-1-yocto-i386-minimal-20190520.cgz-c50eb1ed654b59efad96884cc26895a0acd7a15a-20200910-4374-1mjkprf-3.yaml
[ 9.904329] ARCH=i386
[ 9.904786] kconfig=i386-randconfig-r026-20200909
[ 9.905564] branch=linux-next/master
[ 9.906202] commit=c50eb1ed654b59efad96884cc26895a0acd7a15a
[ 9.907202] BOOT_IMAGE=/pkg/linux/i386-randconfig-r026-20200909/gcc-9/c50eb1ed654b59efad96884cc26895a0acd7a15a/vmlinuz-5.9.0-rc3-00323-gc50eb1ed654b5
[ 9.909484] max_uptime=600
[ 9.910007] RESULT_ROOT=/result/boot/1/vm-snb-i386/yocto-i386-minimal-20190520.cgz/i386-randconfig-r026-20200909/gcc-9/c50eb1ed654b59efad96884cc26895a0acd7a15a/3
[ 9.912177] LKP_SERVER=inn
[ 9.912636] selinux=0
[ 9.913011] softlockup_panic=1
[ 9.913484] vga=normal
[ 9.931703] process 143 (init) attempted a POSIX timer syscall while CONFIG_POSIX_TIMERS is not set
Starting udev
[ 10.061529] pidof (167) used greatest stack depth: 6528 bytes left
[ 10.070496] udevd[168]: starting version 3.2.7
[ 10.072314] random: udevd: uninitialized urandom read (16 bytes read)
[ 10.073812] random: udevd: uninitialized urandom read (16 bytes read)
[ 10.075031] random: udevd: uninitialized urandom read (16 bytes read)
[ 10.079997] udevd[168]: specified group 'kvm' unknown
[ 10.087732] udevd[169]: starting eudev-3.2.7
[ 10.225841] udevd[169]: specified group 'kvm' unknown
[ 10.392367] parport_pc 00:04: reported by Plug and Play ACPI
[ 10.394027] parport0: PC-style at 0x378, irq 7 [PCSPP(,...)]
[ 10.428374] lp0: using parport0 (interrupt-driven).
[ 10.429380] lp0: console ready
[ 10.432762] NET3 PLIP version 2.4-parport gniibe@....co.jp
[ 10.433719] plip0: Parallel port at 0x378, using IRQ 7.
[ 10.453613] Linux agpgart interface v0.103
[ 10.975166] ppdev: user-space parallel port driver
[ 12.143279] rcu-torture: rcu_torture_read_exit: End of episode
[ 14.166934] udevd (173) used greatest stack depth: 6280 bytes left
[ 16.266823] uvesafb: Getting VBE info block failed (eax=0x4f00, err=1)
[ 16.267957] uvesafb: vbe_init() failed with -22
[ 16.268728] uvesafb: probe of uvesafb.0 failed with error -22
[ 16.785570] urandom_read: 3 callbacks suppressed
[ 16.785574] random: dd: uninitialized urandom read (512 bytes read)
[ 17.024261] bootlogd (222) used greatest stack depth: 6276 bytes left
LKP: HOSTNAME vm-snb-i386-109, MAC 52:54:00:12:34:56, kernel 5.9.0-rc3-00323-gc50eb1ed654b5 2, serial console /dev/ttyS0
Poky (Yocto Project Reference Distro) 2.7+snapshot vm-snb-i386-109 /dev/ttyS0
[ 18.137435] mount: mounting debug on /sys/kernel/debug failed: No such file or directory
[ 25.848294] rcu-torture: rcu_torture_read_exit: Start of episode
[ 25.855111] rcu-torture: rcu_torture_read_exit: End of episode
[ 26.072692] random: fast init done
[ 27.041201] sysrq: Emergency Sync
[ 27.042059] sysrq: Resetting
To reproduce:
# build kernel
cd linux
cp config-5.9.0-rc3-00323-gc50eb1ed654b5 .config
make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare modules_prepare bzImage
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
lkp
View attachment "config-5.9.0-rc3-00323-gc50eb1ed654b5" of type "text/plain" (154218 bytes)
View attachment "job-script" of type "text/plain" (4598 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (13512 bytes)
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